Is my rigid conduit system grounded properly per NEC if I use a locknut and sealing ring on the outside of enclosure and a locknut and plastic bushing on inside of enclosure?
What I'm concerned about is that the sealing ring prevents the teeth of the outer locknut from coming into contact with the outside of the enclosure.
What I'm concerned about is that the sealing ring prevents the teeth of the outer locknut from coming into contact with the outside of the enclosure.